clute



(No Model.) 3 Sheets-Sheet 1,

J. GLUTE.

MACHINE FOR UNITING KNIT PABRIGS. I S

No. 344,897. Patented July 6, 1886 WITNESSES x 06, WW Q I .dttorniaff u,PETERS. Pholo-Lilhogmphen Washington. .0.

(No Model.) 3 Sheets-Sheet 2.-

J. OLUTE.

MACHINE FOR UNITING KNIT FABRICS."

N0.344,897. PatentedJ'-uly6,1886.

' WITNESSES I INT EN TOR M1;

Attorney (No Model.) 3 Sheets-Sheet 3'.

J. GLUT E. MACHINE FOR UNITINGKNIT FABRICS.- N04. 344,89,7. PatentedJuly 6, 1886.

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linirnn STATES PATENT iee JOHL OLUTE, OF OOHOES, NEW YORK, ASSIGNOR TOCAMPBELL 8t CLUTE, OF SAME PLACE.

MACHIINE FOR UNITING KNIT FABRICS.

SPECIFICATION forming part of Letters Patent No. 344,897, dated July 6,1886.

Application filed February 5,1886. Serial No. 190,922. (No model.)

To (v55 whom it may concern:

Be it known that 1, JOHN CLUTE, of Cohoes, county of Albany, and Stateof New York, have invented a new and useful Improvement in MachinesforUnitingKnit Fabrics,of which the following is a full, clear, and exactdescription, reference beinghad to the accompanying drawings, makingpart of this specification.

My invention relates to certain improve ments in that class ofturning-off machines described in Letters Patent No. 228,802, dated June15, 1880, and known as circular turning-off machines, used in sewingtogether the two selvage or looped edges of knitted or looped fabrics,inwhich machines the points carrying the edges of the fabric are arranged.in a circle and project radially from a revolving cylinder, so called,of suitable form and construction, and provided with suitable appliancesfor carrying the points, and bringing and holding them successivelyunder the needle while a single or double stitch is formed. In machinesof this class, known as double-stitch cylinder turningoff machines, asingle stitch is made in the usual manner, and the cylinder remainsstationary until a second stitch is formed above the other, the twostitches constituting what 0 is called a double stitch. After a doublestitch is thus formed the cylinder moving brings the next point underthe needle,when another double stitch is formed, and an elastic seam isthus produced. In forming the sec- 5 0nd stitch-that is to say, thesecond part of a double stitch-the needle and the looper,by suitablemechanism, are raised above the fabrics high enough to allow the needleto pass over the fabrics at the time when it would 0 otherwise havepassed again through the sel-' tails of construction hereinafterdescribed,and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of my invention withcertain details omitted. Fig. 2 is a plan view of the same. Fig. 3 is aside elevation of the ncedleaarm lever, the looper-holder lever, and theconnectingrod. Figs. 4 and 5 represent the counter-shaft earn andcam-block; Fig. 6, the trip-lever cam, roller, and spring, and a part ofthe triplever; Fig. 7, the looper-holder and spring, the end of thelooperholder lever, and the con necting bolt or stud; Fig. 8, thecam-fastening and details.

A is the supporting frame or stand, which may be of any suitable formfor carrying the parallel axles B and O and the projecting arm 1). I

In the drawings the axle B is the needle and 'looper-cam axle, whichprojects beyond the frame, and in practice carries the drivingpulley andshipping devices.

E is a lug to carry the shipper-lever.

The shipping devices and the driving-pulley are not shown in thedrawings.

The axle O is the counter-shaft, is parallel to axle B, and is driven bythe spur-wheels F and G at one-half the speed of the axle B.

Axles B and G revolvein suitable bearings in uprights II, I, J, and K.

By means of screws through the screw-holes L the frame or stand A may besecured to the top of a bench or table, near its edge, in such manner orposition that the cylinder will proj ect laterally therefrom. V

The outer or overhanging end of the arm D is provided with a hub, N,bored to receive the cylinder-axle in the usual manner.

The cylinder is not shown in the drawings, because the construction ofsuch cylinders is too well known to require description here, and theparts of a cylinder necessary to a description of my invention aresufficiently indicated in Figs. 1 and 2.

The cylinder may be of any suitable form and construction for carryingthe points 0 and bringing them successively into their proper positionsbelow the needle.

P is a ring, usually of brass, into which the points 0 tightly fit. Anincomplete section of the ring 1? and a point, 0, are represented ICO inFig. 1, and the circle of the points is'indicated by a dotted line inFig. 2.

The cylinder is revolved by a circular rack, Q, driven by a pinion, R,on the axle S of the ratchet-wheel T. The number of teeth on the rack isso proportioned to the number of teeth on the pinion and on theratchet-wheel that the latter in moving one tooth will move the cylinderenough to carry the points the distance required for each double stitch,or for each single stitch, when the machine is used for making asingle-stitch seam.

U is the fulcrum-post, usually employed in connection with the eccentricor pawl rod V and eccentric W for working the .ratchetwheel T. Theeccentric W is carried by the axle B.

The trip-lever X has its fulcrum in a stud or pin, Y, projecting fromthe arm 1). One end of the trip-leverX is provided with afriction-roller, Z, which rests on the trip-lever cama and receives itsmotion therefrom. The trip-lever cam in its cylindrical part isconcentric with the couuter-shaft O, and the other end of lever X is socurved that the bearingpin 7) does not interfere with the action of thepawl-rod V, while the roller Z rests uponthe cylindrical part of cam a.The cam a is flattened on a part of its face, as shown in Fig. 6, insuch manner that when the roller Z rests upon the flattened part thepawl V will be lifted, and, resting upon pin 1), cannot move theratchet.

When the machine is in operation, forming a double-stitch seam, theparts are so adjusted that the pawl-rod V will be raised in time toprevent the movement of the ratchet while the second part of the doublestitch is made.

0 is the needle-cam, and dis the looper-cam. Both are of the usual form,are carried by the axle B, and operate in the usual manner.

A cam-block (not visible in the drawings) moves in the cam-groove of camc and receives the pin e of the needle armf.

g is the looper-holder.

I1. is the needle, and z the'looper.

The stud j of the needle-arm is attached to one end of the needle-armlever 76. of the looper-holder is attached to one end of thelooper-holder'lever m. The other end of lever m is connected with astud, 0, on lever is by a connecting-rod, p. The end of lever nearestthe stud o is provided with a pin, q, inserted in a cam-block, 1'. Thecam-block r fits looselyin the cam-groove s of cam ton the counter-shaftO. The cam t may have either a groove, 8, as shown in the drawings, orthe end of lever 70 may be provided with a frictionroller and a suitableweight or spring to hold it down on the face of the cam in a mannersimilar to that shown in Fig. 6.

The form of cam t (clearly shown in the drawings) is such that eachrevolution of the counter-shaft will once raise and once lower the camend of the lever k, and thereby raise and lowersimultaneously the needleand looper The stud Z.

when properly connected with oraltached to that lever.

The several parts must be so proportioned and adjusted that the needleand looper will be lowered to form a single stitchthat is to say, thefirst part of a double stitchand raised to form the second part of adouble stitch.

WVhen a single-stitch seam is to be made,the spur-wheel G is moved alongthe counter-shaft O and thrown out of gear with wheel F, and saidcounter-shaft and cam t thereon fixed in such position that thecam-block T will beheld at its highest point, thus allowing the needleand looper to remain at their lowest working limit. The cam a on saidcounter-shaft,which is now fixed and inoperative, is also adjusted andfixed in such position and relation to the roller Z on the trip-leverXthat said roller and that end of the lever will be elevated and theother end of the trip-lever depressed correspondingly, this allowing thepawl-arm V to always engage and drive the ratchet-wheel T. Thus it willbe seen that the axle O, eccentrics t and a, and the trip-lever X willall be inoperative and at rest, and the pawl-arm V will operate thewheel T at each revolution of the axle B, and thereby cause a single rowof.

stitches to be formed.

7) is the looper-holder spring, (see Fig. 1,) and a is the spring (seeFig. 6) for holding the trip-lever roller Z against the face of the cam.The lever It has its fulcrum on a stud, w, projecting over theneedle-cam, and the lever on has its fulcrum on the stud x on theopposite side of the upright column K. The stud 0c is shown in dottedlines in Fig. 1.

WVhen it is desirable to form a double-stitch seam without raising theneedle and looper above the fabrics in forming the second part of thedouble stitch, the set-screw yisloosened or taken out, so as to allowthe cam t. to revolve freely on the counter-shaft, and the cam is turnedon the shaft until the needle and looper are brought into their lowerpositions, and until the fastening-pine, passing through the column J,will enter the hole 1 of the cam and fix said cam to column J so that itcannot rotate. It will thus be seen that since the cam 25 cannot rotatethe needle and looper will not be raised, and will always operate in thesame plane. The cam a, however, will still act upon the trip-lever andcause it to lift the pawlarm V, for the purpose of allowing the ring toremain stationary until the second stitch is formed.

2 and 3 are suitable collars to prevent the camt from moving endwise onthe countershaft.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a machine for uniting knit fabrics, in which the needle and looperare adapted to be raised and lowered simultaneously,the

needlearm lever 70 and the looper-holder lever m, connected with eachother, as described, and operated by a cam, t, on a eountershaft, O,substantially as described.

2. In a machine for uniting knit fabrics, in which the needle and looperare adapted to be raised and lowered simultaneously, the needie-armlever 70 and the looper-holder lever m, connected to each other by arod, 1), and having their fnlcruins on opposite sides of the upright K,in combination with a cam, t, on a counter-shaft, O, for operating saidneedle-arm lever and looper-holder lever, substantially as described.

3. In a machine for uniting knit fabrics, in which the needle and looperare adapted to be raised and lowered simultaneously, the needle-armlever 70 and the looper-holder lever m, having a link-connection witheach other, in combination with a cam, t, for operating the needle-armlever and looper-holder lever, arranged on a counter-shaft, 0, parallelwith the needle-cam axle l3, and driven by spur-wheels F and G atone-half the speed of that axle, substantially as described.

4. In a machine for uniting knit fabrics, in which the needle and looperare adapted to be raised and lowered simultaneously, the needle-armlever 70 and the looper-holder lever m, connected with each other, asdescribed, a cam, t, on the counter-shaft O, for actuating said levers kand m, and means, substantially as described, for fastening andloosening the cam t on the counter-shaft, and for holding the camstationary while the counter-shaft revolves, substantially as described.

In testimony whereof I have hereunto set my hand this 3d day ofFebruary, A. D. 1886.

JOHN OLUTE.

Witnesses:

MURRAY HUBBARD, DAVID E. SMITH.

